CN114409982A - Wear-resistant rubber gloves and preparation method thereof - Google Patents
Wear-resistant rubber gloves and preparation method thereof Download PDFInfo
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- CN114409982A CN114409982A CN202111647247.9A CN202111647247A CN114409982A CN 114409982 A CN114409982 A CN 114409982A CN 202111647247 A CN202111647247 A CN 202111647247A CN 114409982 A CN114409982 A CN 114409982A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/02—Direct processing of dispersions, e.g. latex, to articles
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/0055—Plastic or rubber gloves
- A41D19/0058—Three-dimensional gloves
- A41D19/0065—Three-dimensional gloves with a textile layer underneath
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2311/00—Characterised by the use of homopolymers or copolymers of chloroprene
- C08J2311/02—Latex
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/06—Sulfur
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Abstract
The invention discloses a wear-resistant rubber glove and a preparation method thereof, and belongs to the field of synthetic rubber gloves. The wear-resistant rubber glove comprises the following preparation raw materials in parts by weight: 100-120 parts of neoprene latex, 0.1-0.5 part of inorganic base, 1-3 parts of sulfur, 2-6 parts of metal oxide, 2-4 parts of accelerator, 1-4 parts of anti-aging agent, 5-20 parts of carbon black and 1-5 parts of plasticizer. The invention adopts the secondary dipping to control the film forming and shaping of the glove and the stable performance control. The low-pressure kettle type vulcanization is adopted, so that the problems that in the prior art, the vulcanization temperature is high, the time is long and the operation is difficult to control due to two-step vulcanization at a high temperature are solved. The wear resistance is improved by controlling the formula and the process of the neoprene latex gloves and adding the fiber lining, and the gloves which accord with the expected wear resistance effect are prepared.
Description
Technical Field
The invention belongs to the field of synthetic rubber gloves, and particularly relates to a wear-resistant rubber glove and a preparation method thereof.
Background
The labor protection article is necessary defensive equipment for protecting personal safety and health of workers in the production process, and plays a very important role in reducing occupational hazards. Because the elasticity and the physical and mechanical properties of the neoprene dairy products are similar to those of natural latex products, the neoprene protective gloves have good heat resistance, weather resistance, ozone resistance, flame retardance, chemical medium corrosion resistance, oil resistance, good air tightness, and good performances of preventing alpha particles and tritium permeation of adhesive films. The neoprene latex has better film forming and processing performances, and is one of better latexes for manufacturing protective articles. However, the neoprene gloves sold in the market at present are classified into two types, one type is the gloves without linings, the gloves are prepared by one-time gumming, the gloves are poor in moisture removal and sweat release during wearing, not easy to use for a long time, and poor in overall protective performance, the other type is the gloves with linings are prepared by two-time gumming, the lining layer is natural latex or neoprene, but the chemical protective performance is basically 1-3 grade.
The prior neoprene gloves with better market are disclosed in Chinese patent with application publication number CN108477714A, and the gloves are manufactured according to the following formula: neoprene latex: 90-120 parts of vulcanizing agent: 2-8 parts of a surfactant: 0.5-3 parts of an accelerator: 1-4 parts of an anti-aging agent: 1-2 parts, the gloves provided by the prior art have excellent chemical-proof and anti-penetrating performance, high tensile strength and high elongation at break, but belong to chemical-proof gloves. The inner layer and the outer layer are made of neoprene, the inside of the glove is smooth, the glove can easily fall off when being worn, and the glove is inconvenient to wear and use in a high-temperature environment for a long time. Meanwhile, the glove does not achieve the expected effect in the aspect of abrasion resistance. Double-deck neoprene gloves, but when the thickness of layer increases, the adhesion properties between the layer can reduce, uses after certain time wearing, probably appears the bonding between layer and drops, causes the gloves damaged.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a wear-resistant rubber glove and a preparation method thereof. The invention prepares the antichemical chloroprene rubber gloves with wear resistance. The wear resistance is improved by controlling the formula and the process of the neoprene latex gloves and adding the fiber lining, and the gloves which accord with the expected wear resistance effect are prepared.
In order to achieve the purpose, the invention adopts the technical scheme that: the wear-resistant rubber gloves are prepared from the following raw materials in parts by weight: 100-120 parts of neoprene latex, 0.1-0.5 part of inorganic base, 1.0-3.0 parts of sulfur, 2.0-6.0 parts of metal oxide, 2.0-4.0 parts of accelerator, 1.0-4.0 parts of anti-aging agent, 5.0-20.0 parts of carbon black and 1.0-5.0 parts of plasticizer.
The wear-resistant rubber gloves are prepared by compounding neoprene latex, inorganic base, sulfur, metal oxide, an accelerant, an anti-aging agent, carbon black and a plasticizer according to a certain proportion, have the characteristic of enhancing the wear resistance of the neoprene gloves and can achieve certain physical and mechanical properties. Compared with the thiuram system vulcanization method in the prior art, which needs to strictly regulate the viscosity of the neoprene latex by using a thickening agent, the thiuram system vulcanization method has the advantages that the thickening agent is not needed to be added to strictly control the viscosity, the convenience for material preparation is high, and the process is easier to control.
As a preferred embodiment of the invention, the preparation raw materials of the wear-resistant rubber gloves comprise the following components in parts by weight: 100-120 parts of neoprene latex, 0.15-0.35 part of inorganic base, 2-3 parts of sulfur, 2-5 parts of metal oxide, 2.5-4 parts of accelerator, 1-3.5 parts of anti-aging agent, 5-20 parts of carbon black and 1-5 parts of plasticizer.
The inventor finds that in the preparation process of the rubber gloves, under the same low-temperature and low-pressure vulcanization conditions, the vulcanization degree of the rubber gloves is more complete, the wear resistance of the rubber gloves is more prominent, and the problem of poor glove performance caused by insufficient vulcanization degree can be solved.
As a preferred embodiment of the present invention, the metal oxide includes zinc oxide and/or magnesium oxide.
As a preferred embodiment of the present invention, the inorganic base comprises potassium hydroxide and/or sodium hydroxide.
As a preferred embodiment of the present invention, the accelerator includes any one of diphenylthiourea, ethylenethiourea, and tetraethylthiuram disulfide.
In a preferred embodiment of the present invention, the antioxidant comprises any one of 2, 6-di-tert-butyl-p-methylphenol, poly (dicyclopentadiene-co-p-cresol), and p-dibenzyloxybenzene.
As a preferred embodiment of the present invention, the plasticizer includes any one of dibutyl phthalate and di (2-ethyl) hexyl phthalate.
As a preferred embodiment of the present invention, the preparation raw material further includes a coagulant; the coagulant comprises 25-30 parts of calcium chloride, 70-85 parts of ethanol and 0-0.50 part of fatty alcohol-polyoxyethylene ether.
The invention also provides a preparation method of the wear-resistant rubber glove, which comprises the following steps:
(1) weighing the components in the preparation raw materials according to the weight part ratio, and uniformly mixing to obtain neoprene latex;
(2) filtering the neoprene latex in the step (1), and standing to obtain primary latex;
(3) diluting the neoprene latex in the step (1) with water, filtering, and standing to obtain secondary latex;
(4) soaking the model into a coagulant for homogenizing, drying, soaking in primary latex for 10-45s, standing on the front side after homogenizing, and drying after leaching to obtain a hand-molding adhesive film;
(5) sleeving the softened fiber lining on the hand mold adhesive film, spraying with hot water, soaking in secondary latex for 15-30s, and drying to obtain the glove;
(6) after finishing the gloves in the step (5), vulcanizing for 30-50min to obtain vulcanized gloves;
(7) and demolding the vulcanized gloves, boiling in water, and drying to obtain the wear-resistant rubber gloves.
The inventor finds that the sizing agent with the specific formula adopts secondary impregnation control to solve the problems of relatively simple impregnation control, lack of performance of gradually increasing adhesive films and easiness in uncontrollable product in the prior art, and the gloves are stable in film forming and shaping and performance control. Compared with the thiuram system vulcanization method in the prior art which needs to strictly regulate and control the viscosity of neoprene latex by using a thickening agent, the invention adopts a simple vulcanization system and is matched with a soft fiber lining, the material convenience is high, and the process is easier to control. And the thickness required and designated by the product is achieved through the technical design of manufacturing and molding, and the dipping condition and the vulcanization condition are controlled. In conclusion, the rubber with stronger wear resistance and certain seepage and penetration resistance can be obtained by formula design control, multi-step simple dipping process, low-pressure kettle type vulcanization and simple water boiling and drying treatment.
As a preferred embodiment of the present invention, in the step (1), the mixing is performed in a uniform manner: and adding the potassium hydroxide solution into the chloroprene latex, uniformly mixing for 5min, sequentially adding other components of the preparation raw material into the chloroprene latex, and uniformly mixing for 35-40min to obtain the chloroprene latex.
In the step (2), as a preferred embodiment of the present invention, a primary latex is obtained after filtering with an 80-mesh filter screen and standing for 3-4 hours.
As a preferred embodiment of the invention, in the step (3), filtering with a 80-mesh filter screen, standing for 4-5 hours to obtain a secondary latex; the volume ratio of water to neoprene latex in the secondary latex is 100: (25-35).
The inventor finds that the glove is obtained by dipping the latex twice, the thickness of the inner layer and the outer layer of the glove can be controlled, and the wearing skin feeling is improved.
In the step (4), the coagulant is homogenized and then dried at 45-90 deg.C for 3-8 min.
In the step (4), the front side is vertically parked for 3-10min at room temperature.
As a preferred embodiment of the present invention, in said step (4), leaching is carried out in water at 75-90 ℃ for 2-5 min.
As a preferred embodiment of the present invention, in the step (4), the hand molding film is obtained by drying at 90-100 ℃ for 15-25min after leaching.
In the step (5), the hot water is showered for 5 seconds at 60 ℃.
As a preferred embodiment of the present invention, in the step (5), drying is performed at 60 to 90 ℃ for 1.5 to 2 hours.
As a preferred embodiment of the present invention, in the step (6), the vulcanization is carried out at a temperature of 90 to 125 ℃ and a pressure of 0.15 to 0.5 MPa.
The inventor finds that the neoprene latex can finish the vulcanization process at lower temperature and pressure, thereby reducing the requirement on production equipment, improving the production safety and reducing the production energy consumption. The complete vulcanization can be realized at the temperature of 90-125 ℃ and the pressure of 0.15-0.5Mpa, and the prepared rubber gloves have good wear resistance.
As a preferred embodiment of the present invention, in the step (6), the vulcanization is carried out at a temperature of 110 ℃ and 125 ℃ and a pressure of 0.15 to 0.3 MPa.
The inventor finds that the gloves prepared by vulcanization at the temperature of 110-.
In the step (6), the vulcanized glove is obtained after 45-50min of vulcanization
The inventor finds that the neoprene latex can finish the vulcanization process at lower temperature and pressure for 45-50min, shortens the production period and greatly improves the production efficiency.
As a preferred embodiment of the present invention, in the step (7), the mixture is boiled in a hot water tank at 60-90 ℃ for 25-40 min.
In the step (7), the drying is performed in a drum at 60-100 ℃ for 150 min.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention adopts simple and easily controlled process conditions to carry out film forming and shaping, gradually enhances the wear resistance of the adhesive film, and can prepare the wear-resistant rubber gloves which are comfortable to wear by matching with the fiber sleeves as liners.
(2) The vulcanization process is purchasing low-pressure kettle type vulcanization, one-step operation is realized, the temperature and the time are relatively short, and the operation and control of the vulcanization process are avoided.
(3) The invention further utilizes the film forming and shaping of the gloves and the performance control through the formula design control and the multi-step simple dipping process.
(4) The invention not only has certain penetration-proof and chemical-proof performances, but also has stronger wear resistance, and can effectively carry out special protection on hands.
Drawings
FIG. 1 is a flow chart of the manufacturing process of the present invention.
Detailed Description
In order to better illustrate the objects, technical solutions and advantages of the present invention, the present invention will be further described with reference to specific examples, comparative examples and effect examples. The experimental methods in the examples of the invention are all conventional methods unless otherwise specified; unless otherwise indicated, all reagents and materials are commercially available.
Example 1
The embodiment 1 of the invention provides a wear-resistant rubber glove and a preparation method thereof. The preparation raw materials of the wear-resistant rubber gloves comprise the following components in parts by weight: 100 parts of neoprene latex, 0.1 part of inorganic base, 2 parts of sulfur, 2 parts of metal oxide, 2.5 parts of accelerator, 1 part of anti-aging agent, 5 parts of carbon black and 1 part of plasticizer.
The preparation method comprises the following steps: (1) the neoprene latex is prepared by 100 parts of neoprene latex, 0.1 part of potassium hydroxide, 2.0 parts of sulfur, 2.0 parts of zinc oxide, 2.5 parts of accelerant (diphenylthiourea), 1.0 part of anti-aging agent (2, 6-di-tert-butyl-p-methylphenol), 5.0 parts of carbon black and 1.0 part of plasticizer. Diluting potassium hydroxide with quantitative soft water, adding into the neoprene latex under stirring, adding other raw materials into the neoprene latex according to the proportion part by part after 5min, stirring for 35min, and standing for later use. (2) Preparing a primary adhesive: after the neoprene latex is prepared, filtering the neoprene latex by using a 80-mesh filter screen, and standing the neoprene latex for 3 to 4 hours for use. (3) Preparing secondary glue: after the neoprene latex is prepared, adding quantitative soft water for dilution, filtering by using a 80-mesh filter screen, and standing for 4-5 hours for use. (4) Preparing a coagulant, adding 30 parts of calcium chloride into 70 parts of industrial alcohol by one under the stirring condition, adding 0.50 part of peregal O (fatty alcohol-polyoxyethylene ether), continuously stirring for 30min, and standing for 2h for later use. Soaking the primary gel, cleaning the model with detergent, drying in a drying cabinet at 65 deg.C for 20min, taking out and soaking in coagulant for 6s, homogenizing, transferring to a drying cabinet at 55 deg.C for drying for 8min, taking out and soaking in primary latex for 45s, standing at room temperature for 10min, transferring to a hot water tank at 75 deg.C for leaching for 2min, and transferring to a drying cabinet at 90 deg.C for drying for 25 min. (5) Soaking with secondary glue, coating the dried hand mold glue film with softened fiber lining, showering with 60 deg.C hot water for 5s, soaking with secondary latex for 15s, and drying in 90 deg.C drying cabinet for 1.5 hr. (6) Vulcanizing, namely performing appearance beautifying finishing such as curling and trimming on the dried gloves, and transferring the gloves into a high-pressure steam tank for vulcanizing at the temperature of 115 ℃, under the pressure of 0.15Mpa and for 50 min. (7) And (3) demoulding, post-treating and vulcanizing the gloves, removing the gloves from the model, putting the gloves into a hot water tank at 60 ℃ for water boiling for 30min, transferring the gloves into a rotary drum at 60-100 ℃ for drying for 120min, and thus obtaining the wear-resistant chloroprene gloves with the fiber linings.
Example 2
The embodiment 2 of the invention provides a wear-resistant rubber glove and a preparation method thereof. The preparation raw materials of the wear-resistant rubber gloves comprise the following components in parts by weight: 110 parts of neoprene latex, 0.25 part of inorganic base, 2.5 parts of sulfur, 4 parts of metal oxide, 3 parts of accelerator, 2.5 parts of anti-aging agent, 10 parts of carbon black and 2 parts of plasticizer.
The preparation method comprises the following steps: (1) the preparation method comprises the following steps of preparing neoprene latex, 110 parts of neoprene latex, 0.25 part of potassium hydroxide, 2.5 parts of sulfur, 4.0 parts of zinc oxide, 3 parts of an accelerator (diphenylthiourea), 2.5 parts of an anti-aging agent (2, 6-di-tert-butyl-p-methylphenol), 10 parts of carbon black and 2.0 parts of a plasticizer. Diluting potassium hydroxide with quantitative soft water, adding into the neoprene latex under stirring, adding other raw materials into the neoprene latex according to the proportion part by part after 5min, stirring for 40min, and standing for later use. (2) Preparing the primary rubber, filtering the neoprene rubber latex by using a 80-mesh filter screen after preparing the neoprene rubber latex, and standing for 3-4 hours for use. (3) And (3) preparing secondary glue, namely adding quantitative soft water for dilution after neoprene latex is prepared, filtering by using a 80-mesh filter screen, and standing for 4-5 hours for use. (4) Preparation of a coagulant under the condition of stirring, gradually adding 30 parts of calcium chloride into 70 parts of industrial alcohol, adding 0.50 part of peregal O (fatty alcohol-polyoxyethylene ether), continuously stirring for 30min, and standing for 2 hours for later use. Soaking the primary gel, cleaning the model with detergent, drying in a drying cabinet at 90 deg.C for 15min, taking out and soaking in coagulant for 6s, homogenizing, transferring to a drying cabinet at 45 deg.C for 5min, taking out and soaking in primary latex for 25s, standing at room temperature for 10min, transferring to a hot water tank at 80 deg.C for leaching for 2min, and transferring to a drying cabinet at 90 deg.C for drying for 20 min. (5) And (3) secondary latex dipping, namely coating the softened fiber lining on the dried hand molding adhesive film, flushing with hot water at 60 ℃ for 5s, dipping the secondary latex for 15s, and then drying in a drying cabinet at 60 ℃ for 2 h. (6) And (3) vulcanizing, namely performing appearance beautifying finishing such as curling and trimming on the dried gloves, and transferring the gloves into a high-pressure steam tank for vulcanizing at the temperature of 110 ℃, the pressure of 0.30Mpa and the vulcanizing time of 45 min. (7) Demoulding and post-processing, removing the vulcanized gloves from the model, boiling the gloves in hot water at 75 ℃ for 25min, transferring the gloves to a rotary drum at 80 ℃ for drying for 130min, and obtaining the wear-resistant chloroprene gloves with fiber linings.
Example 3
The embodiment 3 of the invention provides a wear-resistant rubber glove and a preparation method thereof. The preparation raw materials of the wear-resistant rubber gloves comprise the following components in parts by weight: 120 parts of neoprene latex, 0.35 part of inorganic base, 3 parts of sulfur, 5 parts of metal oxide, 4 parts of accelerator, 3.5 parts of anti-aging agent, 20 parts of carbon black and 5 parts of plasticizer.
The preparation method comprises the following steps: (1) the preparation method comprises the following steps of preparing neoprene latex 120 parts, potassium hydroxide 0.35 part, sulfur 3.0 part, zinc oxide 5.0 part, accelerator (diphenylthiourea) 4 parts, anti-aging agent (2, 6-di-tert-butyl-p-methylphenol) 3.5 parts, carbon black 20 parts and plasticizer 5.0 parts. Diluting potassium hydroxide with quantitative soft water, adding into the neoprene latex under stirring, adding other raw materials into the neoprene latex according to the proportion part by part after 5min, stirring for 35min, and standing for later use. (2) Preparing the primary rubber, filtering the neoprene rubber latex by using a 80-mesh filter screen after preparing the neoprene rubber latex, and standing for 3-4 hours for use. (3) And (3) preparing secondary glue, namely adding quantitative soft water for dilution after neoprene latex is prepared, filtering by using a 80-mesh filter screen, and standing for 4-5 hours for use. (4) Preparing a coagulant, adding 30 parts of calcium chloride into 70 parts of industrial alcohol by one under the stirring condition, adding 0.50 part of peregal O (fatty alcohol-polyoxyethylene ether), continuously stirring for 30min, and standing for 2h for later use. Soaking the primary gel, cleaning the model with detergent, drying in a drying cabinet at 100 deg.C for 10min, taking out and soaking in coagulant for 5s, homogenizing, transferring to a drying cabinet at 90 deg.C for 3min, taking out and soaking in primary latex for 10s, standing at room temperature for 3min, transferring to a hot water tank at 90 deg.C for leaching for 5min, and transferring to a drying cabinet at 100 deg.C for drying for 15 min. (5) Soaking with secondary glue, coating the dried hand mold glue film with softened fiber lining, showering with 60 deg.C hot water for 5s, soaking with secondary latex for 30s, and drying in 90 deg.C drying cabinet for 2 hr. (6) And (4) performing appearance beautifying finishing such as curling and trimming on the dried gloves by vulcanization, and transferring the gloves into a high-pressure steam tank for vulcanization at the temperature of 125 ℃, the pressure of 0.30Mpa and the vulcanization time of 50 min. (7) Demoulding, post-treating and vulcanizing, removing the gloves from the model, boiling in hot water at 90 deg.C for 40min, transferring to a rotary drum at 100 deg.C, drying for 150min to obtain the wear-resistant gloves with fiber lining.
Example 4
Embodiment 4 of the invention provides a wear-resistant rubber glove and a preparation method thereof. The preparation raw materials of the wear-resistant rubber gloves comprise the following components in parts by weight: 100 parts of neoprene latex, 0.5 part of inorganic base, 1 part of sulfur, 6 parts of metal oxide, 2 parts of accelerator, 4 parts of anti-aging agent, 20 parts of carbon black and 5 parts of plasticizer.
The preparation method comprises the following steps: (1) the preparation method comprises the following steps of preparing 100 parts of neoprene latex, 0.5 part of sodium hydroxide, 1 part of sulfur, 6 parts of magnesium oxide, 2 parts of an accelerator (diphenylthiourea), 4 parts of an anti-aging agent (2, 6-di-tert-butyl-p-methylphenol), 20 parts of carbon black and 5 parts of a plasticizer. Diluting potassium hydroxide with quantitative soft water, adding into the neoprene latex under stirring, adding other raw materials into the neoprene latex according to the proportion part by part after 5min, stirring for 35min, and standing for later use. (2) Preparing a primary adhesive: after the neoprene latex is prepared, filtering the neoprene latex by using a 80-mesh filter screen, and standing the neoprene latex for 3 to 4 hours for use. (3) Preparing secondary glue: after the neoprene latex is prepared, adding quantitative soft water for dilution, filtering by using a 80-mesh filter screen, and standing for 4-5 hours for use. (4) Preparing a coagulant, adding 25 parts of calcium chloride into 85 parts of industrial alcohol by one under the stirring condition, continuously stirring for 30min, and standing for 2 hours for later use. Soaking the primary gel, cleaning the model with detergent, drying in a drying cabinet at 65 deg.C for 20min, taking out and soaking in coagulant for 6s, homogenizing, transferring to a drying cabinet at 55 deg.C for drying for 8min, taking out and soaking in primary latex for 45s, standing at room temperature for 10min, transferring to a hot water tank at 75 deg.C for leaching for 2min, and transferring to a drying cabinet at 90 deg.C for drying for 25 min. (5) Soaking with secondary glue, coating the dried hand mold glue film with softened fiber lining, showering with 60 deg.C hot water for 5s, soaking with secondary latex for 15s, and drying in 90 deg.C drying cabinet for 1.5 hr. (6) Vulcanizing, namely performing appearance beautifying finishing such as curling and trimming on the dried gloves, and transferring the gloves into a high-pressure steam tank for vulcanizing at the temperature of 90 ℃, under the pressure of 0.5Mpa and for vulcanizing for 30 min. (7) And (3) demoulding, post-treating and vulcanizing the gloves, removing the gloves from the model, putting the gloves into a hot water tank at 60 ℃ for water boiling for 30min, transferring the gloves into a rotary drum at 60-100 ℃ for drying for 120min, and thus obtaining the wear-resistant chloroprene gloves with the fiber linings.
Comparative example 1
Comparative example 1 of the present invention is identical to example 2 in preparation of raw materials and preparation method except that the vulcanization temperature is 80 ℃ and the pressure is 0.5 MPa.
Comparative example 2
Comparative example 2 of the present invention is the same as example 2 except that the vulcanization temperature is 135 ℃ and the pressure is 0.3MPa, and the preparation method and the raw materials are the same.
Comprehensive material property tests were conducted on the polyphenylene ether alloys prepared in examples 1 to 4 and comparative examples 1 to 2. Specific test items and test standards are shown in table 1, and comprehensive performance test results are shown in table 2.
TABLE 1 test items and test standards
TABLE 2 results of comprehensive Properties test of examples 1 to 4 and comparative examples 1 to 2
The results of the tests in the table show that inventive examples 1-4 have good tear, abrasion, cut, puncture, thermal aging and permeation resistance. In particular, the neoprene gloves prepared under the formulations and vulcanization processes of examples 2-3 exhibited the best overall performance. Comparative examples 1-2 are inferior to examples 2-3 of the present invention in combination with the problem of vulcanization process fig. 1 is a flow chart of the manufacturing process of the present invention, specifically including mold cleaning → drying → coagulant → drying → primary gum soaking → parking set → drying → fiber covering lining → secondary gum soaking → drying → dressing → vulcanization → demoulding → drying → product finishing process.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The wear-resistant rubber gloves are characterized in that the wear-resistant rubber gloves are prepared from the following raw materials in parts by weight: 100-120 parts of neoprene latex, 0.1-0.5 part of inorganic base, 1-3 parts of sulfur, 2-6 parts of metal oxide, 2-4 parts of accelerator, 1-4 parts of anti-aging agent, 5-20 parts of carbon black and 1-5 parts of plasticizer.
2. The abrasion-resistant rubber glove of claim 1, wherein the abrasion-resistant rubber glove is prepared from the following raw materials in parts by weight: 100-120 parts of neoprene latex, 0.15-0.35 part of inorganic base, 2-3 parts of sulfur, 2-5 parts of metal oxide, 2.5-4 parts of accelerator, 1-3.5 parts of anti-aging agent, 5-20 parts of carbon black and 1-5 parts of plasticizer.
3. As a preferred embodiment of the present invention, the preparation raw material further includes a coagulant; the coagulant comprises 25-30 parts of calcium chloride, 70-85 parts of ethanol and 0-0.50 part of fatty alcohol-polyoxyethylene ether.
4. A method of making a wear resistant rubber glove as claimed in any of claims 1 to 3, comprising the steps of:
(1) weighing the components in the preparation raw materials according to the weight part ratio, and uniformly mixing to obtain neoprene latex;
(2) filtering the neoprene latex in the step (1), and standing to obtain primary latex;
(3) diluting the neoprene latex in the step (1) with water, filtering, and standing to obtain secondary latex;
(4) soaking the model into a coagulant for homogenizing, drying, soaking in primary latex for 10-45s, standing on the front side after homogenizing, and drying after leaching to obtain a hand-molding adhesive film;
(5) sleeving the softened fiber lining on the hand mold adhesive film, spraying with hot water, soaking in secondary latex for 15-30s, and drying to obtain the glove;
(6) after finishing the gloves in the step (5), vulcanizing for 30-50min to obtain vulcanized gloves;
(7) and demolding the vulcanized gloves, boiling in water, and drying to obtain the wear-resistant rubber gloves.
5. The method for preparing the wear-resistant rubber gloves according to claim 4, wherein in the step (2), the latex is filtered by using a 80-mesh filter screen, and the latex is obtained after standing for 3-4 hours.
6. The method for preparing the wear-resistant rubber gloves according to claim 4, wherein in the step (3), the latex is filtered by using a 80-mesh filter screen, and the secondary latex is obtained after standing for 4-5 hours.
7. The method of manufacturing abrasion resistant rubber gloves according to claim 7, wherein the volume ratio of water to neoprene latex in the secondary latex is 100: (25-35).
8. The method for preparing abrasion-resistant rubber gloves according to claim 4, wherein in the step (6), vulcanization is carried out at a temperature of 90 to 125 ℃ and a pressure of 0.15 to 0.5 MPa.
9. The method for preparing abrasion-resistant rubber gloves according to claim 4, wherein in the step (6), the vulcanization is carried out at a temperature of 110 ℃ and 125 ℃ and a pressure of 0.15 to 0.3 MPa.
10. The method for preparing abrasion-resistant rubber gloves according to claim 4, wherein in the step (6), the gloves are vulcanized for 45-50min to obtain vulcanized gloves.
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| CN115384097A (en) * | 2022-08-19 | 2022-11-25 | 江苏金科防护用品有限公司 | Rubber glove processing and shaping method |
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| CN108215031A (en) * | 2017-12-23 | 2018-06-29 | 广州双乳胶制品有限公司 | A kind of preparation process of butyronitrile nylon insert gloves |
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